<template>
  <div class="cmt-container">
    <h3>发表评论</h3>
    <hr>
    <textarea placeholder="请输入要评论的内容（最多120字）" maxlength="120"></textarea>
    <mt-button type="primary" size="large">发表评论</mt-button>
    <div class="cmt-list" v-for="(item, index) in comments" :key="index">
      <div class="cmt-item">
        <div class="cmt-title">
          第{{index+1}}楼  用户：{{item.user_name}} &nbsp; &nbsp;发表时间：{{item.add_time | dataFormat}}
        </div>
        <div class="cmt-body">
          {{item.content === 'undefined'? '此用户很懒，什么都没说': item.content}}
        </div>  
      </div>
    </div>
    <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
  </div>
</template>

<script>
import {Toast} from 'mint-ui'
export default {
  props:['id'],
  data(){
    return{
      pageIndex: 1, //默认展示第一页数据
      comments: [] //所有评论数据
    }
  },
  created(){
    this.getComments();
  },
  methods:{
    getComments(){//获取评论
      this.$http.get('api/getcomments/'+this.id+"?pageindex="+this.pageIndex)
        .then(result=>{
          if(result.body.status===0){
            // this.comments = result.body.message
            //每当加载新数据的时候，不把老数据覆盖，而是拼接起来
            this.comments = this.comments.concat(result.body.message)
          }else{
            Toast("获取评论失败！")
          }
        })
    },
    getMore(){
      this.pageIndex++;
      this.getComments()
    }
  }
}
</script>

<style lang="scss" scoped>
.cmt-container{
  margin: 5px 0;
  h3{
    font-size: 18px;
  }
  textarea{
    font-size: 15px;
    height: 85px;
    margin: 0;
  }
  .cmt-list{
    margin: 1px 5px;
    .cmt-item{
      font-size: 13px;
      .cmt-title{
        line-height: 30px;
        background-color: #ccc;
      }
      .cmt-body{
        line-height: 35px;
        text-indent: 2em;
      }
    }
  }
}
</style>
